The flow of online marketing makes the traditional brick-and-mortar paradigm seem quaint by example. Facebook, in particular, seems to change its algorithms daily to match the needs of its advertisers. This leaves clients scrambling to decipher exactly which mode will get the most eyeballs on their products on any given day. With so many variants, in a constant state of flux, it makes one wonder at the complexities of modern advertising. But the consumer will always find what they want, and in the age of the Internet, clicks are gold. Cartoon by Ed Hall.